Default severity: warning
sync.Pool.Put accepts an interface. Storing a concrete non-pointer value
requires boxing it on the heap, adding the allocation the pool is intended to
avoid. Slices are also boxed because the slice header itself is a value.
Store a pointer to the reusable value instead. Pointer-like maps, channels, functions, interfaces, and unsafe pointers are accepted.
Bad
buffer := make([]byte, 0, 4096); pool.Put(buffer)Good
buffer := make([]byte, 0, 4096); pool.Put(&buffer)